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30820663296 = 217342903
BaseRepresentation
bin11100101101000011…
…100000000000000000
32221112221111220210000
4130231003200000000
51001110042211141
622054145440000
72140523213133
oct345503400000
987487456700
1030820663296
1112086508565
125b81940000
132ba2401297
1416c543221a
15c05bd35b6
hex72d0e0000

30820663296 has 180 divisors, whose sum is σ = 92112855912. Its totient is φ = 10270015488.

The previous prime is 30820663283. The next prime is 30820663301. The reversal of 30820663296 is 69236602803.

30820663296 is a `hidden beast` number, since 3 + 0 + 8 + 2 + 0 + 6 + 632 + 9 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10615381 + ... + 10618283.

Almost surely, 230820663296 is an apocalyptic number.

30820663296 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30820663296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46056427956).

30820663296 is an abundant number, since it is smaller than the sum of its proper divisors (61292192616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30820663296 is an frugal number, since it uses more digits than its factorization.

30820663296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 30820663296 in words is "thirty billion, eight hundred twenty million, six hundred sixty-three thousand, two hundred ninety-six".